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Water and Phosphorus cycles are gaseous ...

Water and Phosphorus cycles are gaseous cycles.

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Phosphorus cycle is

Phosphorus cycle is a sedimentary/gaseous cycle.

Why are carbon and nitrogen cycles called gaseous cycles ?

Phosphorus cycles in the form of

Assertion: Phosphorus cycle is an imperfect cycle as a sufficient amount of phosphorus combines with Al^(3+) Fe^(2+) and Ca^(2+) to form insoluble and unavailable salts. Reason: Phosphate circulation in abiotic environment in lithosphere as well as in atmosphere.

Phosphorus cycle is .............type of cycle.

Select the pairs of sediamentary biogeochemical cycles. I. Hydrogen cycle and water cycle II. Phosphorus cycle and sulphur cycle III. Calcium cycle and magnesium cycle IV. Carbon cycle and nitrogen cycle

(a) Trace the succession of plants on a dry bare rock. (b) How does phosphorus cycle differ from carbon cycle. ?

Why is phosphorus cycle called an imperfect cycle ?

Phosphorus cycle differs from carbon cycle as the former

MODERN PUBLICATION-ECOSYSTEM -QUICK MEMORY TEST (A. Say True or False)
  1. Driving force in an ecosystem is formed of producers.

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  2. Submerged hydrophytes have stomata on upper surface.

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  3. Energy and materials follow unidirectional flow.

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  4. Earth is a closed system as far as materials are concerned.

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  5. Water and Phosphorus cycles are gaseous cycles.

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  6. Biosphere is also called Ecosphere.

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  7. The ecological succession taking place in dry area is xerarch.

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  8. The effect of individuals of different species on each other is called...

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  9. The competition of individuals may be for food , space , light and oth...

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  10. Heterotrophic succession takes place on substratum having plenty of mi...

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  11. The introduction of new life forms in bare areas is initiated by act o...

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  12. Migration, ecesis and aggregation are collectively called as invasion.

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  13. Plant communities are always stable.

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  14. It is possible to predict the direction of succession.

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  15. Plant ecosystem is an orderly process of ecosystem development.

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  16. Phosphorus cycle is an example of sedimentary cycle.

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  17. Nitrogen cycle is an example of sedimentary cycle.

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  18. The pyramid of energy is always upright.

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  19. The energy flow in an ecosystem is unidirectional.

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  20. Breakdown of organic molecules into inorganic molecules is carried out...

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